Preceding Invoice issue date The date when the Preceding Invoice was issued. About ID IBT-026Cardinality 0..1Section SharedName Preceding Invoice issue dateSyntax binding ubl:Invoice / cac:BillingReference / cac:InvoiceDocumentReference / cbc:IssueDateRules IBR-006: An Invoice MUST contain the Seller name (ibt-027).IBR-098: Seller name (ibt-027) MUST occur maximum once.IBR-073: A date MUST be formatted YYYY-MM-DD in (ibt-002), (ibt-007), (ibt-009), (ibt-026), (ibt-072), (ibt-073), (ibt-074), (ibt-134), (ibt-135).